Territory



(No Model.)

0. H. LA BELLE. LOCK.

Patented Nqv. 13, 1894.

l/qhtvmoow UNITED STATES PATENT DFFICE.

CHARLES HENRY LA BELLE, OF SALT LAKE CITY, UTAH TERRITORY.

LOCK.

SPECIFICATION forming part of Letters Patent No. 529,348, dated November 13, 1 894.

. Application filed May 24, 1894:. Serial No. 512,334- (No model.)

To all whom it may concern,

Be itknown that 1, CHARLES HENRY LA BELLE, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake, Territory of Utah, have invented certain new and useful Improvements in Locks, of which the following is a description, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to improvements in looks, and more particularly to locks to be applied to house doors.

Primarily, myobject is to provide a lock which requires, in order to be placed in position, very little cutting away of the door, while another object is to improve generally upon the construction of locks by simplifying as much as possible the arrangement of the various parts, and to this end'my invention consists in the various matters hereinafter described and claimed.

The accompanying drawings illustrate my invention, and of these Figure 1 is a side elevation of a portion of a door to which is applied my lock mechanism, the casing inclosing said mechanism being removed and shown in dotted lines. Fig. 2 is a front elevation of a portion of said door. Fig. 3 is a side elevation showing the side other than that shown in Fig. 1. Fig. 4: is a top plan View. Fig. 5 is a sectional plan. Fig. 6 is a front view of the thumb nut. Fig. 7 is a sectional side elevation of the same. Fig. 8 is a front view of the thumb nut taken just in front of the screw P shown in Fig. '7.

In the drawings A represents a portion of a door having therein the recess ct and extendingtherethrough theopeningsafla Fitting upon one side of the door is a face plate B provided with an angle portion B which covers the recess Ct in the door, and has therein the usual opening b for the passage of the locking bolt. Upon the inner side of the face B is a threaded seat 12 and upon this fits a cylinder D within which are contained stationary tumblers d as shown in Fig. 5; this cylinder when in position passing through the opening a in the door. Upon the opposite side of the door is a second face plate 0 having openings which register with the openings a, o

In order to avoid cutting away a portion of the door for the reception of the lock as is now customary, and at the same time to place the locking bolt in such a position that it will enter the side of the door casing, a shell E 2 containing thelocking mechanism is secured upon the plate B by means of screws entering from the inside of said plate, and the locking bolt F is bent to pass through an opening 19 in the plate B, and also through the opening b in the angle plate B, the opening b as well as the recess a. being large enough to permit the necessary play of the bolts.

Referring to the arrangement of the parts of the locking mechanism grooves e are formed in the inner side of the shell E and in these slide the sidesfif of the frame of the bolt F, the rear of said sides being connected by a raised blockf, the front of which is raised above the sides fifas shown. Upon one of the sides of the frame is a shoulder) while upon the other side is a plate f from which extends a pin g between which and a corresponding pin g upon the face plate B fits a spring Gr serving to force the bolt F outward; Suitable means must, of course, be provided for reciprocating the bolt F, and in the present instance such means are provided j that the lock may either be operated by an ordinary door knob, or may be employed as a night latch to be opened by a key; suitable other means being provided for securing the locking bolt against movement when it is so desired. To accomplish these purposes, the usual spindle H, carrying the knobs H, H extend through the opening a ,and has fitted upon it a cylindrical block M provided with reduced ends m, m fitting in suitable openings e and b upon the shell and face plate respectively. It is around this block that the block'f fits, and upon said block M are arms m which bear against the raised portions of block f. Thus a turning of the door knob will force one or the other of the arms m against the block f and will in this way with draw the bolt.

To provide for using the look as a night latch, a second cylindrical block N having the reduced portions n n is placed between the sides ff, said ends fitting in an opening a in the shell E, and the opening b made in same.

the plate B at the point of the threaded seat I). Extending from the block N is a dog it, carrying a pin n while suitably held in the shell E is a leaf spring 0 bearing upon the pin n and tending to normally hold the dog in the position shown in Fig. 1, further downward movement being prevented by said dog coming in contact with the lug f of the bolt F. It will be noticed that in this lowermost position the dog rests againsta portion of the bolt and thus'prevents any movement of the Slots n in the block N register with corresponding slots in the tumblers in cylinder D, so that a key insertedthrough said cylinder will enter said slots m and when turned will raise the dog at which, coming in contact with the shoulderf will withdraw the bolt, the spring 0, however, forcing the dog into its locking position as soon as pressure upon the key is released.

It will further be found advantageous to provide means for holding the dog at immovably in either its raised or lowered position, and in order to accomplish this as well as to afiord a construction by which the bolt may be operated from the inside of the house independently of the knob, a screw P engages the block N, its reduced ends 19 passing through said block, forming a seat for the key, while upon an angular portion of said screw fits a thumb nut Q, the chamber of said nut containing the screw P being closed by a threaded cap q.

About the opening 6 is a boss R provided with notches o, o, while upon the thumb nut Q is a lug q adapted to engage with said notches. Said thumb nut has sufficient play upon the screw P to allow the lug q to be withdrawn from the notches o, 'u, the thumb nut being held in its inner or outer position by means of a snap spring 19 fitting in a recess 19 upon the screw P, and bearin g against the wall of the chamber in the thumb nut Q. As will be seen from Fig. 4, the notches in the boss R, the lug q and the dog n are all not be withdrawn by the key, and when the U lug is in the notch t) the dog is raised and the bolt may be withd rawn either by means of the knobs or key, it being possible at all times to operate the bolt by the thumb nut Q.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A look comprising, acasing, a bolt having a frame comprising a front and sides,,a dog pivoted between said sides to lie against the front of the frame and thus securev the bolt against movement, a shoulder upon said frame with which the dog is adapted to engage to move the bolt, and means for turning said dog upon its pivot; substantially as described.

2. Alock comprising a casing, a bolt having a frame comprising a front and sides, a dog pivoted between said sides to lie against the front of the frame and thus secure the bolt against movement, a spring normally holding said dog in this securing position, a shoulder upon said frame with which the dog is adapted to engage to move thebolt, and means for turning said dog upon its pivot; substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES HENRY LA BELLE.

WVitnesses:

JOSEPH DEnuRtoKs, CHARLES D. JOHNSON, 

